Hamilton was able to pinch-hit Thursday, so his return to the lineup does not come as much of a surprise.
Rosscup has not pitched with the Cubs since suffering a shoulder injury in mid-May. He threw four scoreless innings for the Cubs prior to suffering the injury.
Parker spent just a few days with the Cubs in his most recent callup, and has allowed six runs on nine hits in 5 2/3 innings for the Cubs overall this season.
Joseph, who suffered the injury at Double-A Reading, caught and went 1 for 3 Thursday. He will likely see at least a few more games at the rookie league before he returns to Reading, where he was hitting .282/.345/.551 in 87 at-bats prior to the injury.
Guerrero began his rehab assignment with the team's rookie-level affiliate in Arizona, serving as the designated hitter. He went 3 for 5 with a home run, two RBI and two runs scored in the game, his first since late May.
Korecky spent some time with the Blue Jays earlier in the season, allowing three runs in 3 1/3 innings of work.
Four days after slugging his career-high 12th home run of the season, Martinez was held in the yard Thursday. He still managed to make his impact felt, reaching base three times and driving in three runs, while going 2 for 3 with a walk. He added a pair of runs scored in the win.
Martinez is hitting .429/.462/.829 with three home runs and nine RBI in nine July games.
The Jays will select the contract of infielder
Johnson signed a minor-league contract with the Jays in the offseason, and was hitting .248/.402/.471 in 94 games at Buffalo. Adam Lind is expected to be placed on the disabled list with a foot injury in order to make room.
Hunter went 3 for 6 in the blowout win, with a solo home run. He drove in three runs overall and scored twice, bringing his RBI total for the month to 14 in nine games.
Hunter was hitting just .249 on July 1, but has raised his season average to .276 with his play since. He is hitting .444/.447/.750 with three home runs and 14 RBI in nine July games.